CN117147280A - Clamping device for tension bending torsion testing of aircraft metal bracket - Google Patents
Clamping device for tension bending torsion testing of aircraft metal bracket Download PDFInfo
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- CN117147280A CN117147280A CN202311411460.9A CN202311411460A CN117147280A CN 117147280 A CN117147280 A CN 117147280A CN 202311411460 A CN202311411460 A CN 202311411460A CN 117147280 A CN117147280 A CN 117147280A
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- 238000012360 testing method Methods 0.000 title claims abstract description 47
- 238000005452 bending Methods 0.000 title claims abstract description 29
- 238000009434 installation Methods 0.000 claims abstract description 15
- 238000012546 transfer Methods 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 230000007246 mechanism Effects 0.000 claims description 4
- 238000013461 design Methods 0.000 abstract description 13
- 238000012545 processing Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000011056 performance test Methods 0.000 abstract description 2
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- 238000012795 verification Methods 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 3
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- 208000016261 weight loss Diseases 0.000 description 3
- 239000013585 weight reducing agent Substances 0.000 description 3
- 238000013329 compounding Methods 0.000 description 2
- 238000012625 in-situ measurement Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/20—Investigating strength properties of solid materials by application of mechanical stress by applying steady bending forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/22—Investigating strength properties of solid materials by application of mechanical stress by applying steady torsional forces
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Abstract
The invention relates to the technical field of fatigue performance tests and discloses a clamping device for a tension, bending and torsion test of an aircraft metal support, which comprises a connecting seat, a fixed adjusting plate, a rotating base, a rotating table and a switching platform, wherein the fixed adjusting plate is rotationally connected with the connecting seat, the transverse position of the rotating base is adjustably arranged on the fixed adjusting plate, a connecting surface between the rotating base and the rotating table is an arc surface, the rotating table is adjustably arranged on the rotating base along the outer contour position of the arc surface, the longitudinal position of the switching platform is adjustably arranged on the rotating table, the metal support is arranged on a support supporting plate, and the support supporting plate is adjustably arranged on the switching platform. The device can simulate the stretch bending torsion deflection complex stress condition of the aircraft metal bracket, can realize the adjustment of all angles of the half spherical space, has adjustable position on the installation plane, can be repeatedly used and has adjustable multidirectional working condition, and the design processing and manufacturing cost of the tool are greatly reduced.
Description
Technical Field
The invention relates to a clamping device for a tension bending torsion deflection test of an aircraft metal bracket, and belongs to the technical field of fatigue performance tests.
Background
The metal bracket is mainly used for fixing cables on the aircraft, and the metal bracket is fixed on a base body of the aircraft through rivets when in use, and the cables are fixed through the combination of the fasteners and the clamp. The metal bracket for the aircraft is different from the conventional equipment, and particularly, a structure which can meet the requirements of strength, rigidity and durability and is as light as possible is designed. When an aircraft flies at a high speed, even though the metal bracket is a very small part, the metal bracket can generate stretch bending and distortion under high speed or sudden acceleration, and once the function is poor or lost, the wire harness is damaged, so that serious accidents such as out-of-control of the aircraft are caused, and therefore, the metal bracket for the aircraft needs to be subjected to a tensile test. When the aircraft metal support is subjected to tensile test by using the tooling Cheng Yangjian, a special tooling is required to be prepared, the tooling is required to process an interface corresponding to a metal support of a certain specification and an interface corresponding to a tensile testing machine, a conventional tensile testing machine can only axially run, a tensile test is performed according to the orthogonal direction after the conventional tensile testing machine is installed, and a tensile curve result of the orthogonal direction of the metal support is recorded, so that the conventional metal support verification test process is a stress condition of the metal support in the actual use process.
With further improvement of the weight-reduction design of the aircraft, the requirement of the fine design of the metal bracket is also raised. The fine design provides requirements for the verification of the angle stretching design of the working condition of the metal bracket, and the metal bracket has the composite conditions of multi-angle stress, stretch bending, stretch deviation, stretch torsion and the like under the working condition of the aircraft. The conventional test method is used, a corresponding test tool is required to be designed for each working condition angle, the test tool is required to be matched with the tensile tester in angle and interface, and the tool design difficulty is high; in addition, the types of the metal brackets are more, the working conditions to be adapted are more, the tooling is designed for each working condition, and the design workload of the tooling is more unable to be estimated; the number of the tools exceeds the number of the metal brackets, the processing cost of the test tools is far higher than that of the metal brackets, the design and processing workload is increased, the test cost is high, and if the test is carried out according to a conventional method, the fine design work has no economic effect.
Disclosure of Invention
The invention provides a clamping device for testing tension, bending and torsion of a metal bracket of an aircraft, aiming at the defects of the prior art.
The technical scheme for solving the technical problems is as follows: the utility model provides a dress card device for aircraft metal support draws bending and turns round off-spot test, includes connecting seat, fixed regulating plate, rotating base, revolving stage and switching platform, be equipped with on the connecting seat be used for with the interface connection's of test machine connecting hole, fixed regulating plate with rotate between the connecting seat and be connected, the setting of rotating base transverse position is adjustable be in on the fixed regulating plate, the rotating base with the junction surface between the revolving stage is the arc surface, the revolving stage is followed the outer contour position adjustable setting of arc surface is in on the rotating base, the setting of switching platform longitudinal position is adjustable is in on the revolving stage, still including being used for the location the support backup pad of metal support, the setting of support backup pad position is adjustable is in on the switching platform.
The beneficial effects of the invention are as follows: the device can simulate the complex stress condition of the stretch bending torsion of the aircraft metal bracket, and the complex stretch bending torsion coupling condition is subjected to force measurement by a microcomputer control tensile testing machine, so that the adjustment of all angles of a half spherical space can be realized, the position on an installation plane is adjustable, in-situ measurement can be realized under the condition that the traditional stretch measuring equipment is not dismantled, the device can be repeatedly used, and the multidirectional working condition is adjustable, so that the force measurement requirements under the conditions of stretch bending compounding, stretch bending torsion coupling are met, the design verification test of standard structural members with more than 1000 specifications of aerospace can be met, and the design processing and tool manufacturing cost of a tool are greatly reduced; a large amount of working condition test data are provided, engineering data support is provided for the fine design and use of the standard metal bracket, and further weight reduction of the aircraft is facilitated; the processing cost is low, the machine is suitable for various tensile testing machines, the testing range of the conventional tensile testing machine is widened, and a new design verification scheme method is provided for verification of structural members.
On the basis of the technical scheme, the invention can be improved as follows.
Further, the connecting seat comprises a head and a rod, the fixed adjusting plate is provided with a mounting hole, the head is arranged between the fixed adjusting plate and the rotating base, and the rod extends out of the mounting hole and is connected with an interface of the testing machine through a connecting pin.
The beneficial effect of adopting above-mentioned further scheme is, has set up the connecting hole on the connecting seat, installs through the connecting pin passing the connecting hole during the installation, and the head plane of connecting seat is cylindrically, can also provide the installation face for angle adjustment mechanism, and the pole portion of connecting seat passes the mounting hole on the fixed regulating plate, and the mounting hole on the fixed regulating plate all marks the scale, can realize 360 degrees on each direction can the unbalanced load of fixed angle according to scale circumference rotation.
Further, the top of rotating base is equipped with the circular arc holding surface, the bottom of revolving stage be equipped with the arc concave surface of circular arc holding surface looks adaptation still includes a pair of be used for adjusting the arc regulation hole of revolving stage mounted position, the arc regulation hole sets up the circular arc holding surface on.
The beneficial effect of adopting above-mentioned further scheme is, has realized the adjustment of the required angle of revolving stage on the revolving stage through the cooperation of the arc concave surface on the revolving stage and the arc holding surface on the revolving stage, and specific revolving stage can follow the rotation of-90 degrees in the scope of +90 degrees angles on the revolving stage to satisfy the requirement of metal support test angle. Once the angle is adjusted in place, the rotary table is locked with the rotary base by a fastener. The fastening piece adopts a locking bolt, the head of the locking bolt is positioned below the arc-shaped adjusting hole, the rod part of the locking bolt penetrates through the arc-shaped adjusting hole to be in threaded connection with the rotary table, or the rod part of the locking bolt penetrates through the arc-shaped adjusting hole and the hole on the rotary table to be locked through a locking nut. A gasket can be arranged between the locking bolt and the rotating base.
Further, the rotating angle range of the rotating table on the rotating base is-60 degrees to 60 degrees.
The rotary table can rotate within the range of +/-60 degrees on the rotary base, and the position of the rotary table on the rotary base can be adjusted according to actual needs so as to meet test requirements.
Further, the rotating base is connected with the fixed adjusting plate through a first bolt group, a pair of plate adjusting holes for the first bolt group to transversely move are formed in the fixed adjusting plate, and the plate adjusting holes are bar-shaped holes.
The rotary base is arranged above the fixed adjusting plate and connected through the first bolt group, the rotary base can adjust the transverse position on the fixed adjusting plate through the plate adjusting hole, and after the required angle is adjusted in place, the rotary base can be locked through the first bolt group to fix the position. The plate adjusting holes can be marked with scales, and the positions of the rotating base on the fixed adjusting plate can be adjusted according to the scales.
Further, the two sides of the rotating base are respectively provided with an ear plate, and the ear plates are provided with notches or slotted holes for positioning the first bolt groups.
The beneficial effect of adopting above-mentioned further scheme is, notch or slotted hole on the otic placode is convenient for fix a position first bolt group.
Further, the first bolt group includes a first fastening bolt and a first fastening nut, and a rod portion of the first fastening bolt passes through the plate adjusting hole and the notch or the slot hole and is locked by the first fastening nut.
The technical scheme has the beneficial effects that the head of the first fastening bolt is positioned below the fixed adjusting plate, and the rod passes through the plate adjusting hole and the notch or the slotted hole and is in threaded connection with the first fastening nut to realize the installation and positioning of the rotating base on the fixed adjusting plate.
Further, the rotary table is provided with at least one chute for adjusting the longitudinal position of the transfer platform; the switching platform is provided with a pair of platform long holes for adjusting the installation position of the metal bracket.
The beneficial effect of adopting above-mentioned further scheme is that, the position of switching platform on the revolving stage can be realized through removing along the length direction of spout, and the position of metal support on the switching platform accessible platform slot hole is adjusted.
Further, the support supporting plate is connected with the switching platform and the rotary table through a second bolt group, the second bolt group comprises a second fastening bolt and a second fastening nut, the sliding groove is of a T-shaped structure, the head of the second fastening bolt slides in the sliding groove, and the rod part of the second fastening bolt penetrates through the sliding groove, the platform long hole and the through hole in the support supporting plate and is locked through the second fastening nut.
The rotary table has the beneficial effects that the T-shaped groove is formed in the rotary table, the head of the fastening bolt can be accommodated and restrained to move along the length direction of the sliding groove, the second fastening bolt and the second fastening nut are matched and fastened, a certain pretightening force is applied, the transfer platform is prevented from sliding through surface friction, if a pair of second bolt groups are adopted, at least 2000N tensile stress can be met, sliding does not occur, and the second fastening bolt can be properly increased according to the tensile stress, so that the friction force is increased to meet higher tensile stress requirements.
Further, the switching platform includes the first platform and the second platform that parallel set up, a pair of the platform slot hole sets up respectively on first platform and the second platform, distance between first platform and the second platform with the position looks adaptation of through-hole in the support backup pad.
The beneficial effect of adopting above-mentioned further scheme is, adopts the switching platform of split type structure, can adjust according to the difference of the pitch of the mounting hole in the support backup pad of different specifications, not only adjusts the location convenience, for integral type switching platform moreover, can be applicable to the location of the support backup pad of more different specifications.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a perspective view of the first angle of the present invention;
FIG. 3 is a schematic perspective view of an angle II of the present invention;
FIG. 4 is a schematic view of a rotating base according to the present invention;
FIG. 5 is a schematic diagram of a front view of a rotating base according to the present invention;
FIG. 6 is a schematic view of a rotary table according to the present invention;
FIG. 7 is a schematic view of a connecting seat according to the present invention;
FIG. 8 is a schematic view of the structure of the L-shaped metal bracket of the present invention;
FIG. 9 is a schematic view of an example of stretch bending of a metal stent;
FIG. 10 is a schematic diagram of an example of a metal stent pull-twist;
FIG. 11 is a schematic view of an example of a metal stent pull bias;
in the figure, 1, a connecting seat; 101. a connection hole; 102. a head plane; 2. fixing an adjusting plate; 201. a plate adjustment aperture; 3. a rotating base; 301. a circular arc supporting surface; 302. an arc-shaped adjusting hole; 303. ear plates; 304. a notch; 4. a rotary table; 401. an arc-shaped concave surface; 402. a chute; 5. a switching platform; 501. a first platform; 502. a second platform; 503. a platform slot; 6. a first bolt group; 7. a second bolt group; 8. a locking bolt; 9. a gasket; 10. a support plate; 11. a metal bracket; 12. a hanging ring; 13. a screw; 14. and (5) locking.
Detailed Description
The principles and features of the present invention are described below in connection with examples, which are set forth only to illustrate the present invention and not to limit the scope of the invention.
As shown in fig. 1-7, a clamping device for tension, bending and torsion testing of an aircraft metal support comprises a connecting seat 1, a fixed adjusting plate 2, a rotating base 3, a rotating table 4 and a switching platform 5, wherein a connecting hole 101 for connecting with an interface of a testing machine is formed in the connecting seat 1, the fixed adjusting plate 2 is rotationally connected with the connecting seat 1, the rotating base 3 is arranged on the fixed adjusting plate 2 in a transverse position adjustable manner, a connecting surface between the rotating base 3 and the rotating table 4 is an arc surface, the rotating table 4 is arranged on the rotating base 3 in an adjustable manner along the outer contour position of the arc surface, the switching platform 5 is arranged on the rotating table 4 in an adjustable manner in a longitudinal position, and the clamping device further comprises a support supporting plate 10 for positioning the metal support 11, and the support supporting plate 10 is arranged on the switching platform 5 in an adjustable manner.
The connecting seat 1 comprises a head and a rod, wherein the fixed adjusting plate 2 is provided with a mounting hole, the head is arranged between the fixed adjusting plate 2 and the rotating base 3, and the rod extends out of the mounting hole and is connected with an interface of the testing machine through a connecting pin. The connecting seat 1 is provided with the connecting hole 101, the connecting hole 101 is penetrated through by the connecting pin for installation, the head plane 102 of the connecting seat 1 is cylindrical, the installation surface can be provided for the angle adjusting mechanism, the rod part of the connecting seat 1 penetrates through the installation hole on the fixed adjusting plate 2, the installation holes on the fixed adjusting plate 2 are marked with scales, and the eccentric load with a fixed angle in the 360-degree direction can be realized according to the circumferential rotation of the scales.
The top of rotating base 3 is equipped with circular arc holding surface 301, the bottom of revolving stage 4 be equipped with circular arc concave surface 401 of circular arc holding surface 301 looks adaptation still includes a pair of be used for adjusting the arc regulation hole 302 of revolving stage 4 mounted position, arc regulation hole 302 sets up on the circular arc holding surface 301. The arc concave surface 401 on the rotary table 4 is matched with the arc supporting surface 301 on the rotary base 3, so that the required angle of the rotary table 4 on the rotary base 3 is adjusted, and the rotary table 4 can rotate within the range of +/-90 degrees on the rotary base 3, thereby meeting the requirement of the test angle of the metal bracket 11. Once the angle is adjusted in place, the rotary table 4 and the rotary base 3 are locked by fasteners. The fastening piece adopts a locking bolt 8, the head of the locking bolt 8 is positioned below the arc-shaped adjusting hole 302, the rod part of the locking bolt 8 passes through the arc-shaped adjusting hole 302 to be in threaded connection with the rotary table 4, or the rod part of the locking bolt 8 passes through the arc-shaped adjusting hole 302 and the hole on the rotary table 4 to be locked through a locking nut. A washer 9 may also be provided between the locking bolt 8 and the swivel base 3.
Preferably, the rotation angle of the rotary table 4 on the rotary base 3 ranges from-60 degrees to 60 degrees. The rotary table 4 can rotate within the range of +/-60 degrees on the rotary base 3, and the position of the rotary table 4 on the rotary base 3 can be adjusted according to actual needs so as to meet test requirements.
The rotating base 3 is connected with the fixed adjusting plate 2 through a first bolt group 6, a pair of plate adjusting holes 201 for the first bolt group 6 to transversely move are formed in the fixed adjusting plate 2, and the plate adjusting holes 201 are bar-shaped holes. The rotating base 3 is arranged above the fixed adjusting plate 2 and is connected through the first bolt group 6, the rotating base 3 can be adjusted in transverse position on the fixed adjusting plate 2 through the plate adjusting holes 201, and after the required angle is adjusted in place, the position can be fixed through locking through the first bolt group 6. The plate adjusting holes 201 may be marked with scales, and the positions of the rotating bases 3 on the fixed adjusting plate 2 are adjusted according to the scales.
Ear plates 303 are respectively arranged on two sides of the rotating base 3, and notch 304 or slotted holes for positioning the first bolt group 6 are formed in the ear plates 303. The notches 304 or slots in the tab 303 facilitate positioning of the first bolt set 6.
The first bolt group 6 includes a first fastening bolt and a first fastening nut, and a shank portion of the first fastening bolt passes through the plate adjusting hole 201 and the notch 304 or the slot hole and is locked by the first fastening nut. The head of the first fastening bolt is positioned below the fixed adjusting plate 2, and the rod part passes through the plate adjusting hole 201 and the notch 304 or the slotted hole and is in threaded connection with the first fastening nut to realize the installation and positioning of the rotating base 3 on the fixed adjusting plate 2.
The rotary table 4 is provided with at least one chute 402 for adjusting the longitudinal position of the transfer platform 5; the adapter platform 5 is provided with a pair of platform long holes 503 for adjusting the installation position of the metal bracket 11. The position of the transfer platform 5 on the rotary table 4 can be realized by moving along the length direction of the chute 402, and the position of the metal bracket 11 on the transfer platform 5 can be adjusted by the platform long hole 503.
The support plate 10 is connected with the transfer platform 5 and the rotary table 4 through a second bolt set 7, the second bolt set 7 comprises a second fastening bolt and a second fastening nut, the sliding chute 402 is of a T-shaped structure, the head of the second fastening bolt slides in the sliding chute 402, and the rod of the second fastening bolt passes through the sliding chute 402, the platform long hole 503 and the through hole on the support plate 10 and is locked through the second fastening nut. The rotary table 4 is provided with a T-shaped groove, the head of the fastening bolt can be accommodated and restrained to move along the length direction of the sliding groove 402, the second fastening bolt and the second fastening nut are matched and fastened, a certain pretightening force is applied, the transfer platform 5 is prevented from sliding through surface friction, if a pair of second bolt groups 7 are adopted, at least 2000N tensile stress can be met, sliding does not occur, and the number of the second fastening bolts can be properly increased according to the tensile stress, so that friction force can be increased to meet higher tensile stress requirements.
The transfer platform 5 comprises a first platform 501 and a second platform 502 which are arranged in parallel, a pair of platform long holes 503 are respectively arranged on the first platform 501 and the second platform 502, and the distance between the first platform 501 and the second platform 502 is matched with the position of the through hole on the support plate 10. The adapter platform 5 with the split structure can be adjusted according to the difference of the hole distances of the mounting holes in the support plates 10 with different specifications, so that the adapter platform is convenient to adjust and position, and can be suitable for positioning of more support plates 10 with different specifications relative to the integral adapter platform 5.
The metal support 11 is provided with a hanging ring 12 used for being connected with a testing machine, the hanging ring 12 is connected with the metal support 11 through a screw 13, and the hanging ring 12 is also provided with a lock catch 14. The clamping head of the testing machine is also provided with the hanging ring 12, the hanging ring 12 on the clamping head of the testing machine is connected with the locking buckle 14 conveniently, and the screw 13 and the locking buckle 14 can be combined for use to automatically return during the test.
As shown in fig. 8-11, taking the test of the L-shaped metal bracket 11 as an example, fig. 8 is a schematic structural diagram of the L-shaped metal bracket 11 positioned in the clamping device, and fig. 9-11 respectively show the structural diagrams of the L-shaped metal bracket 11 in the stress conditions of the tension deflection test, the tension torsion test and the tension deflection test.
The device can simulate the complex stress condition of the stretch bending torsion of the aircraft metal bracket 11, and can measure the force of the complex stretch bending torsion coupling condition by controlling the tensile testing machine, so that the adjustment of a plurality of angles of a half spherical space and even all angles can be realized, the position on an installation plane is adjustable, the in-situ measurement can be realized under the condition that the traditional stretch measuring equipment is not dismantled, the device can be repeatedly used, and the multidirectional working condition is adjustable, so that the force measuring requirements under the conditions of stretch bending compounding, stretch bending torsion coupling can be met, the design verification test of standard structural members with more than 1000 specifications of aerospace can be met, and the design processing and tool manufacturing cost of the tool is greatly reduced; a large amount of working condition test data are provided, engineering data support is provided for the fine design and use of the metal bracket 11, and further weight reduction of the aircraft is facilitated; the processing cost is low, the machine is suitable for various tensile testing machines, the testing range of the conventional tensile testing machine is widened, and a new design verification scheme is provided for verification of structural members.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (10)
1. The utility model provides a dress card device for aircraft metal support draws bending and turns round off-spot test, includes connecting seat (1), fixed regulating plate (2), angle adjustment mechanism and switching platform (5), a serial communication port, be equipped with on connecting seat (1) be used for with interface connection's of test machine connecting hole (101), fixed regulating plate (2) with rotate between connecting seat (1) and be connected, angle adjustment mechanism includes rotating base (3) and revolving stage (4), rotating base (3) transverse position adjustable sets up on fixed regulating plate (2), rotating base (3) with the junction between revolving stage (4) is the arc face, revolving stage (4) are followed the outline position adjustable of arc face sets up on rotating base (3), switching platform (5) longitudinal position adjustable sets up on revolving stage (4), still including support backup pad (10) that are used for location metal support (11), support backup pad (10) position adjustable sets up on switching platform (5).
2. The clamping device for tension bending torsion testing of an aircraft metal bracket according to claim 1, wherein the connecting seat (1) comprises a head part and a rod part, the fixed adjusting plate (2) is provided with a mounting hole, the head part is arranged between the fixed adjusting plate (2) and the rotating base (3), and the rod part extends out of the mounting hole and is connected with an interface of a testing machine through a connecting pin.
3. The clamping device for tension bending torsion testing of an aircraft metal support according to claim 1, wherein the top of the rotating base (3) is provided with an arc supporting surface (301), the bottom of the rotating table (4) is provided with an arc concave surface (401) matched with the arc supporting surface (301), the clamping device further comprises a pair of arc adjusting holes (302) for adjusting the installation position of the rotating table (4), and the arc adjusting holes (302) are arranged on the arc supporting surface (301).
4. The clamping device for tension bending torsion testing of an aircraft metal bracket according to claim 3, wherein the rotating angle range of the rotating table (4) on the rotating base (3) is-60 degrees to 60 degrees.
5. The clamping device for tension, bending and torsion testing of an aircraft metal bracket according to any one of claims 1 to 4, wherein the rotating base (3) is connected with the fixed adjusting plate (2) through a first bolt group (6), a pair of plate adjusting holes (201) for transversely moving the first bolt group (6) are formed in the fixed adjusting plate (2), and the plate adjusting holes (201) are bar-shaped holes.
6. The clamping device for tension bending torsion testing of an aircraft metal bracket according to claim 5, wherein ear plates (303) are respectively arranged on two sides of the rotating base (3), and a notch (304) or a slotted hole for positioning the first bolt group (6) is formed in each ear plate (303).
7. Clamping device for aircraft metal bracket bending torsion testing according to claim 6, characterized in that the first bolt group (6) comprises a first fastening bolt and a first fastening nut, the shank of the first fastening bolt passing through the plate adjustment hole (201) and the notch (304) or slot and being locked by the first fastening nut.
8. Clamping device for tension bending torsion testing of an aircraft metal bracket according to claim 1, characterized in that the rotary table (4) is provided with at least one chute (402) for adjusting the longitudinal position of the adapter platform (5); the switching platform (5) is provided with a pair of platform long holes (503) for adjusting the installation position of the metal bracket (11).
9. The clamping device for tension-bending torsion testing of an aircraft metal support according to claim 8, wherein the support plate (10) is connected with the transfer platform (5) and the rotary table (4) through a second bolt group (7), the second bolt group (7) comprises a second fastening bolt and a second fastening nut, the sliding groove (402) is of a T-shaped structure, the head of the second fastening bolt slides in the sliding groove (402), and the rod part of the second fastening bolt penetrates through holes in the sliding groove (402), the platform long hole (503) and the support plate (10) and is locked through the second fastening nut.
10. The clamping device for tension, bending and torsion testing of an aircraft metal support according to claim 8, wherein the switching platform (5) comprises a first platform (501) and a second platform (502) which are arranged in parallel, a pair of platform long holes (503) are respectively formed in the first platform (501) and the second platform (502), and the distance between the first platform (501) and the second platform (502) is matched with the position of a through hole in the support plate (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311411460.9A CN117147280B (en) | 2023-10-30 | 2023-10-30 | Clamping device for tension bending torsion testing of aircraft metal bracket |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311411460.9A CN117147280B (en) | 2023-10-30 | 2023-10-30 | Clamping device for tension bending torsion testing of aircraft metal bracket |
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| Publication Number | Publication Date |
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| CN117147280A true CN117147280A (en) | 2023-12-01 |
| CN117147280B CN117147280B (en) | 2024-01-09 |
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| CN202311411460.9A Active CN117147280B (en) | 2023-10-30 | 2023-10-30 | Clamping device for tension bending torsion testing of aircraft metal bracket |
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Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20080088905A (en) * | 2007-03-30 | 2008-10-06 | 한국단자공업 주식회사 | A tensile tester |
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| CN105004609A (en) * | 2015-08-25 | 2015-10-28 | 吉林大学 | Composite material car body embedded part strength test fixture |
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